Question

Write the formula obtained when this atoms loses or gains valence electrons and becomes an ion. Tell whether it is a cation or an anion. Be

Answer 1

Atomic number for Be?

Answer 2

i guess i dont know

Answer 3

ITs 4..that means the valence shells ar filled like K=2 L=2

Answer 4

now L can hold 8 electrons....so the closest stable configuration would be K=2 L=0

Answer 5

what would the formulas be?

Answer 6

It loses 2 electrons so its Be 2+

Answer 7

okay so is it a cation or anion?

Answer 8

Cations are always +ve...so this is a cation ok?

Answer 9

okay so cation is positive and anion is negative right?

Answer 10

yup

Answer 11

B2- anion